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Atom Investors’s iBio IBIO Stock Holding History

Atom Investors’s Portfolio IBIO Stock Details IBIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$178K Buy
+101,557
New +$182K 0.02% 784
2022
Q1 		– Sell
-133
Closed -$37K – 258
2021
Q4 		$37K Buy
+133
New +$50.7K 0.01% 255
2021
Q2 		– Sell
-32
Closed -$25K – 282
2021
Q1 		$25K Sell
32
-38
-54% -$33.1K ﹤0.01% 237
2020
Q4 		$37K Hold
70
– – ﹤0.01% 359
2020
Q3 		$71K Buy
+70
New +$101K 0.01% 489

Other funds holding IBIO

AAA
Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return
CAM
Cormorant Asset Management Boston, Massachusetts $1.95B AUM 773.9% 1-Year Est. Return
SCM
Silverarc Capital Management Boston, Massachusetts $962M AUM 524.64% 1-Year Est. Return
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
Ensign Peak Advisors
Ensign Peak Advisors Salt Lake City, Utah $60.8B AUM 42.06% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Atom Investors's IBIO Position: Q2 2026 in Review

Atom Investors opened a new position in iBio (IBIO) in Q2 2026: 101,557 shares worth $178K. The stake represents 0.02% of the portfolio and ranks #784 among its holdings. This is a return to the name: Atom Investors previously reported a position in IBIO as recently as Q4 2021.

Atom Investors first reported a position in IBIO in Q3 2020 and has held it in 5 quarters since. 55 funds tracked by Wall St. Rank hold IBIO as of Q2 2026.

  • Atom Investors held 101,557 shares of iBio worth $178K as of Q2 2026.
  • iBio was a new Atom Investors position in Q2 2026.
  • iBio made up 0.02% of Atom Investors's portfolio in Q2 2026, its #784 holding.
  • Atom Investors first reported a position in iBio in Q3 2020 and has held it in 5 quarters since.
  • 55 funds tracked by Wall St. Rank held iBio as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.